package cn.rtplay.esp32camcar.myView;

import android.content.Context;
import android.graphics.Canvas;
import android.util.AttributeSet;
import android.view.MotionEvent;

import androidx.appcompat.widget.AppCompatSeekBar;

import cn.rtplay.esp32camcar.toolUtils.LogUtil;

public class VerticalSeekBar extends AppCompatSeekBar {
    private final String TAG = "VerticalSeekBar";
    public VerticalSeekBar(Context context) {
        super(context);
    }

    public VerticalSeekBar(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    public VerticalSeekBar(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    protected void onSizeChanged(int w, int h, int oldw, int oldh) {
        super.onSizeChanged(h, w, oldh,oldw);
    }

    @Override
    protected synchronized void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        super.onMeasure(heightMeasureSpec, widthMeasureSpec);
        setMeasuredDimension(getMeasuredHeight(), getMeasuredWidth());
    }

    protected void onDraw(Canvas c) {

        //从下到上
        //将SeekBar转转90度
        c.rotate(-90);
        //将旋转后的视图移动回来
        c.translate(-getHeight(), 0);

        //从上到下
        //c.rotate(90);
        //c.translate(0,-getWidth());
        LogUtil.d(TAG,"getHeight():"+ getHeight() + "PaddingLeft:"+getPaddingLeft()+"PaddingRight:"+getPaddingRight());
        super.onDraw(c);
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        if (!isEnabled()) {
            return false;
        }

        switch (event.getAction()) {
            case MotionEvent.ACTION_MOVE:
                //从下到上
                int max = getMax();
                int paddingLeft = getPaddingLeft();
                int paddingRight = getPaddingRight();
                int height = getHeight();
                int currY = (int)event.getY();
                int i = max*(height- paddingLeft)/(height- paddingLeft -paddingRight)-max*currY/(height- paddingLeft -paddingRight);
                LogUtil.d(TAG,"max:"+max + " currY:" +currY +" height:"+height+" paddingLeft:"+ paddingLeft +" paddingRight:"+paddingRight+" i:"+i);
                //设置进度
                setProgress(i);

                //从上到下
                //setProgress((int) (getMax() * event.getY() / getHeight()));
                //每次拖动SeekBar都会调用
                onSizeChanged(getWidth(), getHeight(), 0, 0);
                break;
            case MotionEvent.ACTION_DOWN:
            case MotionEvent.ACTION_UP:
            case MotionEvent.ACTION_CANCEL:
                break;
        }
        return true;
    }
}

